Cable connector device

Abstract

The present invention relates to the technical field of box-type substations, and discloses a cable connector device. The cable connector device is arranged in a through-hole of a box body, and includes an adapter joint section, an elastic support section, and a cable fixing section. The adapter joint section includes a through-hole adapter, a sealing nut, and a waterproof cable nut. The through-hole adapter can be arranged and adapted to through-holes of different sizes on the box body. The sealing nut is threadedly connected to the outside of the through-hole adapter and can be pressed against the side wall of the box body. The waterproof cable nut is connected to the end of the through-hole adapter for connecting the cable; the elastic support section is slidably connected to the inner side of the through-hole adapter; the cable fixing section is arranged at the end of the elastic support section away from the adapter joint section and is connected to the elastic support section for fixing the cable. The cable connector device can adapt to different through-hole sizes, has strong versatility, ensures the sealing of the box body, and can also fix the cable and buffer the tension exerted on the cable, so that the cable connector device is not easy to loosen.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type substations, and in particular to a cable connector device. Background Art

[0002] Cable connectors, also known as cable heads, are devices used to lock and secure incoming and outgoing cables, protecting them from water, dust, and vibration. After the cable is laid, in order to form a continuous line, each section of the cable must be connected as a whole. These connection points are generally connected using cable connectors. The cable connector in the middle of the cable line is called an intermediate connector, while the cable connectors at both ends of the line are called terminal heads.

[0003] A box-type substation is a high-voltage switchgear, distribution transformer and low-voltage distribution device. It is generally used for outdoor compact power distribution, which organically combines the functions of transformer step-down and low-voltage distribution. It is installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulated, fully enclosed and movable steel structure box. Therefore, the cable connector device installed on the box-type substation needs to be connected to the cable for power supply or control, and needs to have good sealing.

[0004] The existing cable joints installed in box-type substations still have the following shortcomings:

[0005] (1) To ensure the sealing of the incoming cables, the size of the cable connector is generally consistent with the cable diameter. The pre-opened through-holes on the box may not be consistent with the size of the installed cable connector, which may lead to insufficient sealing or unsatisfactory pressing effect and easy loosening.

[0006] (2) General cable connectors are only used for passing cables and are difficult to fix the cables. When the cables are subjected to external tension, the tension will be directly applied to the electrical equipment connected to the inner core of the cable. The cable connector does not serve as a pull-back force point, and frequent shaking of the cable may cause vibration between the cable connector and the box, thereby increasing the chance of loosening.

[0007] Therefore, there is an urgent need to provide a cable connector device to solve the above problems. Summary of the Invention

[0008] The object of the present invention is to provide a cable connector device that can adapt to through holes of different sizes, has good sealing performance, and can also fix the cable to avoid the problem of loose connectors.

[0009] To achieve the above object, the present invention is implemented through the following technical solutions:

[0010] The cable connector device is installed in the through hole of the box body and specifically includes:

[0011] The adapter section includes a through-hole adapter, a sealing nut, and a waterproof cable nut. The through-hole adapter can be inserted into and adapted to through-holes of different sizes. The sealing nut is threadedly connected to the outside of the through-hole adapter and can be tightly pressed against the side wall of the box. The waterproof cable nut is connected to the end of the through-hole adapter for receiving a cable.

[0012] an elastic support section, slidably connected to the inner side of the through-hole adapter;

[0013] The cable fixing section is arranged at the end of the elastic support section away from the adapter section and is communicated with the elastic support section. The cable fixing section is used to fix the cable.

[0014] As a preferred solution of the cable connector device, the elastic support section includes:

[0015] an inner slide cylinder capable of sliding along the inner side of the through-hole adapter;

[0016] a limiting seat, disposed at an end of the inner slide away from the through-hole adapter;

[0017] The support spring is sleeved on the outer side of the inner slide cylinder.

[0018] As a preferred solution of the cable connector device, the through-hole adapter includes:

[0019] A fastening threaded cylinder is inserted into the through hole;

[0020] A press-fitting cylinder seat is provided at the end of the fastening threaded cylinder and can cover the through hole, and an annular groove for embedding the supporting spring is provided on the opposite end surfaces of the limiting seat and the press-fitting cylinder seat;

[0021] A plurality of arc-shaped adapting pads are provided on the end surface of the press-fitting cylinder seat close to the fastening threaded cylinder and can be pressed tightly into the through hole to adapt to through holes of different sizes;

[0022] The interiors of the fastening threaded cylinder and the pressing cylinder seat are provided with holes for the elastic support section to slide in a limited manner, and the diameter of the internal hole of the pressing cylinder seat is smaller than the diameter of the internal hole of the fastening threaded cylinder.

[0023] As a preferred solution for a cable connector device, a plurality of arc-shaped adapter pads are distributed around the outer side of the fastening threaded barrel and the end face of the pressing barrel seat. The axial cross-section of the arc-shaped adapter pad is a stepped structure with the inner side abutting the outer side of the fastening threaded barrel and the bottom end abutting the end face of the pressing barrel seat. The junction of the fastening threaded barrel and the pressing barrel seat is adapted to abut against through holes of different sizes through the stepped surfaces of a plurality of arc-shaped adapter pads.

[0024] As a preferred solution of a cable connector device, the sealing nut includes:

[0025] A press-fit nut, threadedly connected to the outer side of the fastening threaded barrel;

[0026] The sealing rubber ring is sleeved on the outside of the fastening threaded barrel and covers the through hole. The press-fit nut seals the through hole by pressing the sealing rubber ring.

[0027] As a preferred solution of the cable connector device, the inner slide cylinder includes:

[0028] A slide body, the slide body being capable of sliding along the holes inside the press-fitting cylinder seat and the arc-shaped adapting pad;

[0029] The cylinder end limiting edge is arranged at the end of the slide cylinder body. The cylinder end limiting edge is located in the hole position of the fastening threaded cylinder and can abut the end of the press-fit cylinder seat. The total length of the slide cylinder body and the cylinder end limiting edge is less than the total length of the fastening threaded cylinder and the press-fit cylinder seat.

[0030] As a preferred solution of the cable connector device, the cable fixing section includes:

[0031] a cable fixing screw barrel, which is arranged at the end of the limiting seat away from the inner slide barrel and is in communication with the inner slide barrel;

[0032] Two cable pressing wings, the two cable pressing wings are symmetrically distributed at the ends of the limiting seat, and the two cable pressing wings can be combined and matched to be embedded in the cable fixing barrel and press the cable;

[0033] Two fixing seats, the two fixing seats are symmetrically arranged at the ends of the limiting seat, and are used to lock the two cable pressing wings;

[0034] The elastic sleeve is sleeved on the outside of the cable fixing screw barrel and is used for clamping the two cable pressing wings.

[0035] As a preferred solution of a cable connector device, the cable pressing wing plate includes:

[0036] A connecting shaft is hinged to the end of the limiting seat;

[0037] An arc-shaped wing plate is connected to the connecting shaft, and the shape of the arc-shaped wing plate is adapted to the outer shape of the cable fixing barrel;

[0038] Side pressing blocks are provided on both sides of the arc-shaped wing plate and are used to fit the end surface of the fixing seat;

[0039] A plurality of pressed ribs are arranged on the inner side of the arc-shaped wing plate and extend along the circumference of the arc-shaped wing plate. The plurality of pressed ribs are distributed at intervals along the axial direction of the arc-shaped wing plate.

[0040] As a preferred solution for a cable connector device, the upper and lower end surfaces of the fixing seat have the same shape as the side pressing blocks, and the side pressing blocks on both sides of the arc-shaped wing plate respectively fit the corresponding fixing seats and are fastened together by fasteners.

[0041] As a preferred solution of a cable connector device, the axial cross-section of the pressed rib is a right-angled triangle structure, the side of the pressed rib close to the elastic support section is a hypotenuse, and the side away from the elastic support section is a right-angled side.

[0042] As a preferred solution of the cable connector device, through slots for the plurality of pressing ribs to pass through are provided on the cable fixing barrel at positions corresponding to the two cable pressing wings.

[0043] As a preferred solution of a cable connector device, the elastic sleeve includes:

[0044] A threaded connection barrel, threadedly connected to the cable fixing barrel;

[0045] The wing plate end sleeve is connected to the end face of the threaded connection tube. When the two cable pressing wings are in a merged state, the wing plate end sleeve can be sleeved on the outside of the two cable pressing wings. The front edge of the cable pressing wing is provided with an oblique chamfer to cooperate with the wing plate end sleeve.

[0046] The beneficial effects of the present invention are:

[0047] (1) The present invention transforms the traditional cable connector into a three-section design. The three-section structure consists of three parts that realize different functions. Among them, by setting an adapter connector section, it can be adapted and installed in through holes of different sizes, thereby improving the scope of application. When the cable connector needs to be replaced on the device, there is no need to open an additional hole that meets the size of the cable connector, thereby ensuring the sealing of the box.

[0048] (2) The present invention provides a cable fixing section for fixing the cable passing through, and uses an elastic support section to connect the cable fixing section and the adapter section into a retractable integral structure. When the cable is subjected to outward tension, the cable fixing section presses the elastic support section, and the elastic support section slides and compresses along the inner side of the through-hole adapter to buffer the tension exerted on the cable, thereby making it difficult for the adapter section to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly and easily illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. The drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 is an axial cross-sectional view of a cable connector device provided by an embodiment of the present invention;

[0051] Figure 2 yes Figure 1 Left side view of the through-hole adapter;

[0052] Figure 3 is a structural schematic diagram of a cable fixing section provided by an embodiment of the present invention;

[0053] Figure 4 It is a structural schematic diagram of a cable pressing wing plate provided in an embodiment of the present invention.

[0054] In the picture:

[0055] 100, box body; 110, through hole;

[0056] 1. Adapter section; 11. Through-hole adapter; 111. Fastening threaded barrel; 112. Press-fit barrel seat; 113. Arc-shaped adapter spacer; 12. Sealing nut; 121. Press-fit nut; 122. Sealing rubber ring; 13. Waterproof cable nut;

[0057] 2. Elastic support section; 21. Inner slide; 211. Slide body; 212. Slide end limit edge; 22. Limit seat; 23. Support spring;

[0058] 3. Cable fixing section; 31. Cable fixing screw; 32. Cable pressing wing plate; 321. Connecting shaft; 322. Arc-shaped wing plate; 323. Side pressing block; 324. Pressing rib; 33. Fixing seat; 34. Elastic sleeve; 341. Threaded connection tube; 342. Wing plate end sleeve. DETAILED DESCRIPTION

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0060] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0061] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0062] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0063] Figure 1 An axial cross-sectional view of the cable connector device provided in this embodiment is shown. Figure 1 As shown, this embodiment provides a cable connector device for use in a box-type substation to connect cables used for power supply or control. The cable connector device is installed in a through hole 110 of a box body 100 to connect the cable to the interior of the box body 100. The box body 100 specifically refers to the outer box of the box-type substation.

[0064] Specifically, if Figure 1As shown, the cable connector device adopts a three-section design. The three-section structure consists of three parts that perform different functions: an adapter segment 1, an elastic support segment 2, and a cable fixing segment 3. The adapter segment 1 is used to connect the cable and adapts to the different-sized through-holes 110 in the box 100. The elastic support segment 2 is slidably connected to the inner side of the through-hole adapter 11 to buffer external tension on the cable. The cable fixing segment 3 is located at the end of the elastic support segment 2 away from the adapter segment 1 and is connected to the elastic support segment 2 to allow the cable to pass through and secure the cable.

[0065] More specifically, the adapter joint section 1 includes a through-hole adapter 11, a sealing nut 12 and a waterproof cable nut 13. The through-hole adapter 11 can be passed through and adapted to through-holes 110 of different sizes on the box body 100. The sealing nut 12 is threadedly connected to the outside of the through-hole adapter 11 and can be pressed against the side wall of the box body 100 to achieve a sealing effect. The waterproof cable nut 13 is threadedly connected to the end of the through-hole adapter 11 for connecting cables. After installation, the waterproof cable nut 13 and the sealing nut 12 are located on the outside of the box body 100. By providing the through-hole adapter 11, it can be adapted to be installed in through-holes 110 of different sizes, thereby improving the scope of application. When the cable connector device needs to be replaced on the box-type substation, there is no need to open an additional hole that meets the size of the cable connector device, thereby ensuring the sealing of the box body 100.

[0066] Specifically, refer to Figure 1 The through-hole adapter 11 includes a fastening threaded barrel 111, a press-fit barrel seat 112, and an arc-shaped adapting pad 113. The fastening threaded barrel 111 is inserted into the through-hole 110, and the press-fit barrel seat 112 and the arc-shaped adapting pad 113 are both located on the inner side of the housing 100. The press-fit barrel seat 112 is an integrally formed structure. The press-fit barrel seat 112 is located at the end of the fastening threaded barrel 111 away from the waterproof cable nut 13 and can cover the through-hole 110. The fastening threaded barrel 111 and the press-fit barrel seat 112 are provided with holes for the elastic support section 2 to slide in a limited manner. The arc-shaped adapting pad 113 is located on the end surface of the press-fit barrel seat 112 near the fastening threaded barrel 111 and can be tightly pressed against the through-hole 110 to adapt to through-holes 110 of different sizes.

[0067] Preferably, if Figure 1 As shown, the axial cross-section of the arc-shaped adapting pad 113 is a stepped structure with the inner side fitting the outer side of the fastening threaded barrel 111 and the bottom end fitting the end face of the pressing cylinder seat 112. The stepped structure has multiple step surfaces. Depending on the size of the through hole 110, the inner wall of the box body 100 can abut against any step surface. By abutting against different step surfaces, the junction of the fastening threaded barrel 111 and the pressing cylinder seat 112 is adapted to through holes 110 of different sizes through the step surface of the arc-shaped adapting pad 113, and has strong versatility.

[0068] Preferably, Figure 2 The left side view of the through hole adapter in this embodiment is shown. Figure 2 As shown, the number of arc-shaped adapter pads 113 is set to multiple, preferably four, and the four arc-shaped adapter pads 113 are evenly distributed around the outer side of the fastening threaded cylinder 111 and the end surface of the pressing cylinder seat 112, which is flexible and convenient to use.

[0069] Furthermore, if Figure 1 As shown, the sealing nut 12 includes a compression nut 121 and a sealing rubber ring 122. The fastening threaded barrel 111 is provided with an external thread, and the compression nut 121 is connected to the outer side of the fastening threaded barrel 111 through a threaded sleeve; the sealing rubber ring 122 is movably sleeved on the outer side of the fastening threaded barrel 111 and can cover the through hole 110. By screwing the compression nut 121, the sealing rubber ring 122 can be compressed to seal the through hole 110, thereby improving the sealing performance of the box body 100.

[0070] Furthermore, if Figure 1 As shown, the elastic support section 2 includes an inner slide 21, a limiting seat 22, and a support spring 23. The inner slide 21 can slide along the inner side of the through-hole adapter 11. The limiting seat 22 is arranged at the end of the inner slide 21 away from the through-hole adapter 11. The support spring 23 is sleeved on the outside of the inner slide 21. The limiting seat 22 and the pressing cylinder seat 112 have an annular groove on the opposite end surface for the support spring 23 to be embedded, thereby playing a limiting role. When the cable is subjected to a pull-back force, the elastic support section 2 will be driven by the cable fixing section 3 to move toward the adapter section 1, so that the limiting seat 22 cooperates with the pressing cylinder seat 112 to compress the support spring 23 to buffer the tension on the cable, making the through-hole adapter 11 less likely to loosen. Under the action of the elastic restoring force of the support spring 23, the inner slide 21 and the limiting seat 22 can also be reset, making it flexible and convenient to use.

[0071] Specifically, if Figure 1 As shown, the inner slide 21 includes a slide body 211 and a cylinder end stopper 212. The slide body 211 can slide along the holes inside the press-fit cylinder seat 112 and the arc-shaped adapter pad 113. The cylinder end stopper 212 is connected to the end of the slide body 211 to form an integrated structure. The diameter of the hole inside the press-fit cylinder seat 112 is smaller than the diameter of the hole inside the fastening threaded cylinder 111, so that the cylinder end stopper 212 is located within the hole of the fastening threaded cylinder 111 and can abut the end of the press-fit cylinder seat 112. When the inner slide 21 is reset, the cylinder end stopper 212 can abut the end of the press-fit cylinder seat 112 to play a limiting role and prevent the inner slide 21 from slipping.

[0072] Preferably, the total length of the slide body 211 and the cylinder end limiter 212 is less than the total length of the fastening threaded cylinder 111 and the pressing cylinder seat 112 to prevent the inner slide 21 from colliding with the waterproof cable nut 13 while sliding along the fastening threaded cylinder 111 and the pressing cylinder seat 112.

[0073] Furthermore, if Figure 1 As shown, the cable fixing section 3 includes a cable fixing screw 31, two cable pressing wings 32, two fixing seats 33 and an elastic sleeve 34. The cable fixing screw 31 is arranged at the end of the limiting seat 22 away from the inner slide 21 and is connected to the inner slide 21. The two cable pressing wings 32 are symmetrically distributed at the ends of the limiting seat 22. The cable pressing wings 32 are arc-shaped structures. The two cable pressing wings 32 can be combined and matched to be embedded in the cable fixing screw 31 and press the cable. The two fixing seats 33 are symmetrically arranged at the ends of the limiting seat 22 and are respectively arranged at both ends of the cable pressing wings 32 along the circumferential direction, and are used to lock the two cable pressing wings 32 so that the two cable pressing wings 32 remain in a combined state. The elastic sleeve 34 is movably sleeved on the outside of the cable fixing screw 31 through a thread, and is used to synchronously clamp the two cable pressing wings 32 to prevent the two cable pressing wings 32 from loosening and failing.

[0074] Specifically, Figure 4 The structure diagram of the cable pressing wing plate provided in this embodiment is shown as follows. Figure 4 As shown, the cable pressing wing 32 includes a connecting shaft 321, an arcuate wing 322, a side pressing block 323, and a plurality of pressing ribs 324. The connecting shaft 321 is hinged to the end of the limiting seat 22. By rotating the two cable pressing wing 32, they can be merged or separated, which is simple to operate. The arcuate wing 322 is connected to the connecting shaft 321, and the shape of the arcuate wing 322 is adapted to the outer shape of the cable fixing screw 31. The side pressing blocks 323 are arranged on both sides of the arcuate wing 322, and are used to fit the end face of the fixing seat 33 and connect to the fixing seat 33. A plurality of pressing ribs 324 are arranged on the inner side of the arcuate wing 322 and extend along the circumference of the arcuate wing 322. The plurality of pressing ribs 324 are distributed at intervals along the axial direction of the arcuate wing 322. Exemplarily, two pressing ribs 324 are provided. In other embodiments, the number of the pressed ribs 324 can be adaptively selected according to actual needs and is not specifically limited here.

[0075] Preferably, the cable fixing screw barrel 31 is provided with through slots at positions corresponding to the two cable pressing wings 32 for a plurality of pressing ribs 324 to pass through, and the pressing ribs 324 press and fix the cables after passing through the through slots.

[0076] As a preferred embodiment, the upper and lower end surfaces of the fixing seat 33 are of the same shape as the side pressing blocks 323. Threaded holes extending longitudinally are provided on the fixing seat 33. The side pressing blocks 323 on both sides of the arc-shaped wing plate 322 are respectively attached to the corresponding fixing seats 33 and are fastened and firmly connected by fasteners screwed into the threaded holes on the fixing seat 33. The fasteners are preferably bolts.

[0077] Furthermore, if Figure 4 As shown, the axial cross-section of the pressed rib 324 is a right-angled triangle structure, with the side of the pressed rib 324 close to the elastic support section 2 being the hypotenuse, and the side away from the elastic support section 2 being the right-angled side. By adopting this arrangement, the portion that contacts the cable is tapered, thereby achieving a better pressing and fixing effect on the cable.

[0078] Further, Figure 3 The structure diagram of the cable fixing section provided in this embodiment is shown as follows: Figure 3 As shown, the tension sleeve 34 includes a threaded connection barrel 341 and a wing-end ferrule 342. The threaded connection barrel 341 is threadedly connected to the cable fixing barrel 31; the wing-end ferrule 342 is connected to the end surface of the threaded connection barrel 341 to form an integral structure. When the two cable compression wings 32 are in the combined state, the wing-end ferrule 342 can be placed on the outside of the two cable compression wings 32 to limit and fix the two cable compression wings 32.

[0079] Preferably, the front edge of the cable pressing wing plate 32 is provided with an oblique chamfer for fitting the wing plate end sleeve 342 into, so as to facilitate fitting the wing plate end sleeve 342 into the two cable pressing wing plates 32, making the operation more convenient.

[0080] It should be noted that when using the cable connector device provided in this embodiment, it must first be installed in the through-hole 110 provided in the box-type substation. After installation is complete, the cable is connected and secured. After the cable is secured, the portion of the cable exposed to the outside will be subjected to factors such as gravity and retractive deformation stress, which will generate a certain amount of pullback force on the fixed portion of the cable connector device. By providing the elastic support section 2, the cable connector device is prevented from loosening after installation, ensuring the normal use of the cable.

[0081] It should be noted that the reference Figure 1 The specific method of installing the cable connector device at the through hole 110 on the box-type substation is as follows:

[0082] First, pass the cable connector device part through the through hole 110 from the inside of the box 100 until the through hole adapter 11 of the adapter joint section 1 abuts against the outer edge of the through hole 110, then adjust the position of the through hole adapter 11, and fully abut against the outer edge of the through hole 110 through the multi-step surfaces of the multiple arc-shaped adapter pads 113 provided on the through hole adapter 11. Then, insert the sealing nut 12 and the sealing rubber ring 122 into the outside of the fastening threaded barrel 111 from the outside of the cable connector device until the compression nut 121 fully presses the sealing rubber ring 122 to seal the through hole 110, and then install the waterproof cable nut 13. At this time, the adapter joint section 1 together with the elastic support section 2 and the cable fixing section 3 are fixedly installed.

[0083] refer to Figure 1 , the specific way to connect the cable to the cable connector device is:

[0084] First, pass the cable through the waterproof cable nut 13, then through the fastening threaded barrel 111 and the slide barrel body 211 located inside the fastening threaded barrel 111, and finally through the cable fixing screw barrel 31 connected to the slide barrel body 211. At this point, the cable is completely passed through the cable connector device. Then, according to the wiring requirements within the device, extract the appropriate length of cable and press the cable using the cable fixing section 3 to secure it.

[0085] The specific method of using the cable fixing section 3 to press and fix the cable is as follows:

[0086] First, rotate the cable pressing wing 32 until it contacts the outside of the cable fixing screw 31. Simultaneously, the multiple pressing ribs 324 on the inner side of the curved wing 322 press against the protective layer on the outside of the cable, securing it. Simultaneously, the side pressing blocks 323 on either side of the curved wing 322 contact the upper and lower end surfaces of the two fixing seats 33, respectively, and are fastened together using fasteners, thereby securing the position of the cable pressing wing 32. Then, rotate the cable fixing section 3 and install the other cable pressing wing 32, securing the cable inside the cable fixing section 3.

[0087] It should be noted that when the cable is subjected to a pullback force, the cable fixing section 3 drives the elastic support section 2 toward the adapter section 1, causing the limiting seat 22 to cooperate with the press-fitting cylinder seat 112 to compress the support spring 23, thereby buffering the tension on the cable and preventing the through-hole adapter 11 from loosening. Under the elastic restoring force of the support spring 23, the inner slide 21 and the limiting seat 22 return to their original position.

[0088] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with those embodiments or examples are included in at least one embodiment or example of the present invention. Throughout this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be incorporated in any suitable manner in any one or more embodiments or examples.

[0089] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications may be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A cable connector device, which is inserted into a through hole (110) of a box (100), and is characterized in that: The cable connector device comprises: An adapter joint section (1) comprises a through-hole adapter (11), a sealing nut (12) and a waterproof cable nut (13); the through-hole adapter (11) can be passed through and adapted to through-holes (110) of different sizes; the sealing nut (12) is threadedly connected to the outside of the through-hole adapter (11) and can be pressed against the outer wall of the box (100); the waterproof cable nut (13) is connected to the end of the through-hole adapter (11) and is used for connecting a cable; an elastic support section (2) slidably connected to the inner side of the through-hole adapter (11); a cable fixing section (3), arranged at an end of the elastic support section (2) away from the adapter section (1) and in communication with the elastic support section (2), the cable fixing section (3) being used to fix the cable; The elastic support section (2) comprises: an inner slide cylinder (21), the inner slide cylinder (21) being capable of sliding along the inner side of the through-hole adapter (11); a limiting seat (22) disposed at an end of the inner slide (21) away from the through-hole adapter (11); A support spring (23) is sleeved on the outer side of the inner slide cylinder (21); The cable fixing section (3) comprises: a cable fixing screw cylinder (31), which is arranged at the end of the limiting seat (22) away from the inner slide cylinder (21) and is in communication with the inner slide cylinder (21); Two cable pressing wings (32), the two cable pressing wings (32) are symmetrically distributed at the ends of the limiting seat (22), and the two cable pressing wings (32) can be combined and matched to be embedded in the cable fixing screw barrel (31) and press the cable; Two fixing seats (33), the two fixing seats (33) are symmetrically arranged at the ends of the limiting seat (22) and are used to lock the two cable pressing wings (32); The elastic sleeve (34) is sleeved outside the cable fixing screw barrel (31) and is used for clamping the two cable pressing wings (32).

2. The cable connector device according to claim 1, wherein: The through-hole adapter (11) comprises: A fastening threaded cylinder (111) is inserted into the through hole (110); A pressing cylinder seat (112) is provided at the end of the fastening threaded cylinder (111) and can cover the through hole (110); an annular groove for embedding the supporting spring (23) is provided on the opposite end surfaces of the limiting seat (22) and the pressing cylinder seat (112); A plurality of arc-shaped adapting pads (113) are arranged on the end surface of the pressing cylinder seat (112) close to the fastening threaded cylinder (111) and can be tightly pressed into the through hole (110) to adapt to through holes (110) of different sizes; The interiors of the fastening threaded barrel (111) and the pressing barrel seat (112) are provided with holes for the elastic support section (2) to limit the sliding movement, and the diameter of the internal hole of the pressing barrel seat (112) is smaller than the diameter of the internal hole of the fastening threaded barrel (111).

3. The cable connector device according to claim 2, wherein: A plurality of arc-shaped adapting pads (113) are distributed around the outer side of the fastening threaded cylinder (111) and the end face of the press-fitting cylinder seat (112); an axial cross-section of the arc-shaped adapting pad (113) is a stepped structure with the inner side abutting the outer side of the fastening threaded cylinder (111) and the bottom end abutting the end face of the press-fitting cylinder seat (112); the junction of the fastening threaded cylinder (111) and the press-fitting cylinder seat (112) is adapted to abut against through holes (110) of different sizes through the stepped surfaces of the plurality of arc-shaped adapting pads (113).

4. The cable connector device according to claim 2, wherein: The sealing nut (12) comprises: A press-fit nut (121) threadedly connected to the outside of the fastening threaded cylinder (111); A sealing rubber ring (122) is sleeved on the outside of the fastening threaded cylinder (111) and covers the through hole (110). The compression nut (121) seals the through hole (110) by compressing the sealing rubber ring (122).

5. The cable connector device according to claim 2, characterized in that: The inner slide (21) comprises: A slide body (211), wherein the slide body (211) can slide along the holes inside the pressing cylinder seat (112) and the arc-shaped adapter pad (113); The cylinder end limiting edge (212) is arranged at the end of the slide body (211), and the cylinder end limiting edge (212) is located in the hole of the fastening threaded cylinder (111) and can abut the end of the press-fit cylinder seat (112). The total length of the slide body (211) and the cylinder end limiting edge (212) is less than the total length of the fastening threaded cylinder (111) and the press-fit cylinder seat (112).

6. The cable connector device according to claim 1, wherein: The cable pressing wing plate (32) comprises: A connecting shaft (321) is hinged to the end of the limiting seat (22); An arc-shaped wing plate (322) is connected to the connecting shaft (321), and the shape of the arc-shaped wing plate (322) is adapted to the outer shape of the cable fixing screw barrel (31); Side pressing blocks (323) are provided on both sides of the arc-shaped wing plate (322) and are used to fit the end surface of the fixing seat (33); A plurality of pressed ribs (324) are arranged on the inner side of the arc-shaped wing plate (322) and extend along the circumference of the arc-shaped wing plate (322). The plurality of pressed ribs (324) are distributed at intervals along the axial direction of the arc-shaped wing plate (322).

7. The cable connector device according to claim 6, characterized in that: The upper and lower end surfaces of the fixing seat (33) have the same shape as the side pressing blocks (323), and the side pressing blocks (323) on both sides of the arc-shaped wing plate (322) are respectively fitted to the corresponding fixing seats (33) and are fastened together by fasteners.

8. The cable connector device according to claim 6, characterized in that: The axial cross-section of the pressed rib (324) is a right-angled triangle structure, the side of the pressed rib (324) close to the elastic support section (2) is a hypotenuse, and the side away from the elastic support section (2) is a right-angled side.

9. The cable connector device according to claim 8, characterized in that: The cable fixing screw barrel (31) is provided with through slots at positions corresponding to the two cable pressing wings (32) for the plurality of pressing ribs (324) to pass through.

10. The cable connector device according to claim 1, wherein: The elastic sleeve (34) comprises: A threaded connection cylinder (341) is threadedly connected to the cable fixing screw cylinder (31); The wing plate end sleeve (342) is connected to the end face of the threaded connection tube (341). When the two cable pressing wings (32) are in a combined state, the wing plate end sleeve (342) can be sleeved on the outside of the two cable pressing wings (32). The front edge of the cable pressing wing (32) is provided with an oblique chamfer to match the sleeve (342) at the wing plate end.

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